The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2017
Filed:
Dec. 15, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Toshio Hayashi, Moriya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus that is capable of reducing unpleasant noise accompanying a preparation operation when a job without a print operation is performed. A second control unit controls an image forming unit. A plurality of lines connecting a first control unit and the second control unit include a first line for transmitting a clock to the second control unit from the first control unit, a second line for communicating a command including a start bit according to the clock, and a third line for controlling a state of the second control unit by the first control unit. The second control unit makes the image forming unit perform a preparation operation when the start bit is in a first state after releasing the sleep state, and makes the image forming unit not perform the preparation operation when the start bit is in a second state after releasing the sleep state.